- Source: 331 Etheridgea
331 Etheridgea is a large main belt asteroid. It was discovered by Auguste Charlois on 1 April 1892 in Nice. The meaning of the name is unknown. This asteroid is orbiting the Sun at a distance of 3.02 AU with a period of 5.26 years and an eccentricity (ovalness) of 0.10. The orbital plane is tilted at an angle of 6.05° to the plane of the ecliptic.
Analysis of the asteroid light curve generated from photometric data collected in 2015 provided a rotation period of 25.315±0.001 h. This result is completely different from the previous rotation period estimates. It is a low albedo, carbonaceous C-type asteroid and spans a girth of 74.9±2.7 km.
It may have been named for the geologist and paleontologist Robert Etheridge (1819–1903).
References
External links
Lightcurve plot of 331 Etheridgea, Palmer Divide Observatory, B. D. Warner (1999)
Asteroid Lightcurve Database (LCDB), query form (info Archived 16 December 2017 at the Wayback Machine)
Dictionary of Minor Planet Names, Google books
Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
331 Etheridgea at AstDyS-2, Asteroids—Dynamic Site
Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
331 Etheridgea at the JPL Small-Body Database
Kata Kunci Pencarian:
- Daftar planet minor/301–400
- Daftar planet minor: 1–1000
- 331 Etheridgea
- 332 Siri
- 330 Adalberta
- List of minor planets: 1–1000
- Meanings of minor-planet names: 1–1000
- Auguste Charlois
- List of named minor planets: 1–999
- List of named minor planets: E
